SubArea: Linear functions with absolute valuesLevel: BProject ID: 1003049305Accepted: 1Clonable: 0Easy: 0Identify a real number \( a \) such that the function \( f(x)=a|-12-ax|-a \) has a maximum at \( x=3 \).\( -4 \)\( 3 \)\( 4 \)There is no such number.